Re: [Semantic_Web] Re: web to semantic web : an automated approach

Hi Guys,

Interesting discussion, Here are my two cents :

Most of the tools mentioned have been there for a while, many of us have
already used them tested them, probably some of us have even worked on
building these tools but still I guess there is a slow change as far as
adoption of semWeb is concerned. One of the issues that I felt when talking
to a lot of people who are in the "it will happen" camp that they had no
idea what the scope was, I mean Semantic Web is a vision and what all the
products, tools,languages being built are working towards fulfilling it,but
when building actual products I have seen people use Triple stores as a mere
replacement of Rdbms ( where are you using semantics).

Some problems I see for people trying to adopt Semantic Web:

1. Understanding the scope/ Use of Semantic web in different areas of
software/web dev.
2. Some kind of Development life cycle model, ( people tend to get carried
away when the understand the enormity of the Semantic web and what it could
achieve but being Pragmatic is the key here ) . I know there might be
endless possiblities but has your product/software reached anywhere,buy have
you any delivreable or a just huge ontology which you find out is not well
tested.
3. Setting Ontology quality standards and Testing.

Like for automatic change of web into Semantic Web, we first need to focus
on one spot, I mean  "Rome wasn't built in a day" or something like that.
People in biology are already using Semantic Web for a while. they have
awesome huge ontologies for proteins and what not.

Aside from the others mentioned here,one website worth a mention is
www.freebase.com,

Thanks

Rishav




On Mon, Oct 20, 2008 at 11:14 PM, Juan Sequeda <juanfederico@gmail.com>wrote:

> There is a W3C Incubator group that is working on RDB2RDF[1]
>
> There are also a lot of wrapper systems like D2RQ, but it involves mapping
> languages.
>
> Other options to make it automatic is to consider direct mapping, which
> generates RDF automatically from RDB. [2]
>
> [1] http://www.w3.org/2005/Incubator/rdb2rdf/
> [2] http://www.springerlink.com/content/mv58805364k31734/
>
> Juan Sequeda, Ph.D Student
>
> Research Assistant
> Dept. of Computer Sciences
> The University of Texas at Austin
> http://www.cs.utexas.edu/~jsequeda <http://www.cs.utexas.edu/%7Ejsequeda>
> jsequeda@cs.utexas.edu
>
> http://www.juansequeda.com/
>
> Semantic Web in Austin: http://juansequeda.blogspot.com/
>
>
> On Mon, Oct 20, 2008 at 3:55 AM, Andreas Langegger <al@jku.at> wrote:
>
>> Hi,
>>
>> it's all happening, but it's not so easy as one may think in the first
>> place.
>>
>> Basically there are multiple sources of structured/interlinked information
>> (A) and multiple ways of how to expose (B) linked data on the Web.
>>
>> (A)
>> 1. generated (wrapped) from information systems (RDBMS, etc) => needs
>> mapping
>> 2. user-generated (natively RDF-based systems, Semantic Wikis, etc.) =>
>> already in the right form
>> 3. extracted (AI, heuristics, cypher, etc. - different levels of
>> granularity; difficult, sometimes wrong)
>>
>> (B)1. RDF documents
>> 2. SPARQL endpoints
>> 3. embedded into HTML (RDFa)
>>
>> The Linked Data Community project plays an important role regarding A1 and
>> A2. A3 is cumbersome and may produce wrong links and information - a
>> nightmare without implicit support for provenance. In corporate environments
>> A3 is already very popular, but in the broader Web-scale I'm a bit sceptical
>> this will work well. What do you tink?
>>
>> Regards,
>> AndyL
>>
>>
>>
>> On Oct 20, 2008, at 10:35 AM, Kannan Rajkumar wrote:
>>
>> Hi Mr. Ravinder
>>
>> It is a nice idea, why cannot we transform web content to semantic web
>> content.
>>
>> This is a necessity and will avoid regeneration of web content as semantic
>> web data.
>>
>> Even I am focusing in this direction.
>>
>> With regards,
>>
>> Dr. Rajkumar Kannan
>> Associate Professor
>> Dept. of Computer Science
>> Bishop Heber College, Tiruchirappalli, TN, India
>> URL: http://member.acm.org/~rajkumark/<http://member.acm.org/%7Erajkumark/>
>>
>>
>> ===================================================
>>
>>
>> On 10/20/08, रविंदर ठाकुर (ravinder thakur) <ravinderthakur@gmail.com>
>> wrote:
>>>
>>> any thoughts on this...
>>>
>>>
>>> On Mon, Oct 20, 2008 at 12:38 AM, ravinder thakur <
>>> ravinderthakur@gmail.com> wrote:
>>>
>>>> Hello friends,
>>>>
>>>> I have been following semantic web for some time now and have seen quite
>>>> a lot of projects being run (dbpedia, FOAF etc) trying to generate some
>>>> semantic content. While these approaches might have been successful in their
>>>> goals, one major problem plaguing semantic web as a whole is the lack of
>>>> semantic content. Unfortunately there is nothing in sight that we can rely
>>>> on to generate semantic content for the truckloads of information being put
>>>> on web everyday. I think one of the _wrong_ assumption in semantic web
>>>> community is that content creators will be creating a semantic data which I
>>>> think is too much for the asking from even more technically sound part of
>>>> web community let along whole of the web community. It hasn't happened over
>>>> last so many years and I don't see it happening in the near future.
>>>>
>>>> I think what we need to move the semantic web forward is a mechanism to
>>>> _automatcially_ convert the information over the web to semantic
>>>> information. There are many softwares/services that can be used for this
>>>> purpose. I am currently developing one prototype for this purpose. This
>>>> prototype uses services from OpenCalais(http://www.opencalais.com/) to
>>>> convert ordinary text to semantic form. This service is very limited in what
>>>> entities supports at the moment but its a very good start. I am pretty sure
>>>> there will be many other good options available that might be unknown to me.
>>>> The currently very primitive prototype can be seen at
>>>> http://arcse.appspot.com. This currently implements very few of the
>>>> ideas I have for this. This is hosted on Google's AppEngine so sometime
>>>> gives timeout messages internally so please bear with this :).
>>>>
>>>> This automatic conversion however is not a simple task and needs work in
>>>> lot in domains ranging form NLP to artificial intelligence to semantic web
>>>> to logic etc. So thats why this mail. I will be more than happy if we can
>>>> join together to form a like minded team that can work on solving this most
>>>> important problem plaguing semantic web currently.
>>>>
>>>> Waiting for your suggestions/criticisms
>>>> Ravinder Thakur
>>>>
>>>>
>>>
>>
>>
>>
>> Web of Data Practitioners Days / Oct 22-23 / Vienna
>> http://www.webofdata.info
>> ----------------------------------------------------------------------
>> Dipl.-Ing.(FH) Andreas Langegger
>> Institute for Applied Knowledge Processing
>> Johannes Kepler University Linz
>> A-4040 Linz, Altenberger Straße 69
>> http://www.langegger.at
>>
>>
>>
>>
>>
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Rishav Rastogi

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